During February 2025, Ykonotopov focused on improving build reliability for the karlseguin/quickjs repository by addressing a compatibility issue with GCC 14.2. He resolved a format error in quickjs.c by casting pointer variables to void pointers within module_trace calls, ensuring correct pointer formatting and enabling successful compilation with modern toolchains. His work centered on C programming and build systems, emphasizing cross-compiler compatibility and code maintenance. Although the contribution involved a single bug fix rather than new features, it demonstrated careful debugging and a targeted approach to supporting developer onboarding and reducing build failures for users of updated C compilers.